Saw-setting device.



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J. E. & S. G.'TURNER. SAW SETTING DEVICE.

J. E. & s; 0. TURNER. SAW SETTING DEVICE.

APPLICATION FILED MAR. 9, 1914.

' 1,097,272. Pateniied May 19, 1914.

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@7127 E. T B07761" Wm 5712i Cff'arner &% v 35 UNITED STATES PATENTOFFICE JOHN E. TURNER, or NORMANTOWN, AND SHERLEY, o. TURNER, ornosnnn'nn, wns'r VIRGINIA.

SAW-SETTING DEVICE.

Sp'ecification'of Letters Patent.

Patented May 1'9, 1914.

Application filed March 9, 1914. Serial No. 823,344.

ToaZZ whom it may concern:

Be it known that we, JOHN E. TURNER,

residing at Normantown, county of Gil more, and State of Test Virginia,and

SHERLEY C. TURNER, residing at Rosedale, county of Braxton, in saidState, citizens of justment of the apparatus from one kind of blade toanother is practically instantaneous and very easily performed.

In the accompanying drawings one embodiment of our invention has beenillus trated and Figure 1 shows a longitudinal section of the device;Fig. 2 a top plan view partly in section along line 22 of Fig.'1';f

Fig. 3 a vertical section along"line'3-3 of Fig. 1; Fig. 4 a perspectiveview of the complete apparatus; Fig. 5 a similar View to Fig. 1 showingthe central port-ion only and with a different kind of plunger; Fig. 6 aperspective view of the plunger illustrated in Fig. 5; and Fig. 7 across section along line 77 of Fig. 6.

The apparatus has a base or foundation A secured in any suitable manneron a stand. A block'B is provided at about the middle of the base A, andnear its forward end, a smaller block O is situated. The block B forms aseat for the saw blade, which is laid down flat thereon, and the blockis pro vided with a. depression Z) preferably beveled to accommodate theset teeth. The central block supports a standard D, held down by heavyscrews on the base. This standard has a vertical guide in which theplunger E is mounted so as to be able to reciprocate freely. It rests ona compression spring F, strong enough to raise the lower end of theplunger sufiiciently high above the upper surface of the block B topermit a saw blade of any thickness to pass underneath. To limit theupward motion of the plunger E a stop pin G is fixed in the standard toengage a shoulder g on the plunger E. The lower end of the plunger isbeveled to conform with the desired set of the teeth of the saw. This:bevel may 'be made in one direction only, that is transversely to thesaw blade which corresponds with the longitudinal direction of theapparatus.

A sliding diebar J is carried in a guide way provided in the two blocksB and C in the longitudinal direction of the apparatus, so that the barwill pass directly under the beveled end of the plunger E. The'depth ofthe guide is identical with the thickness of the sliding bar J, so thatthe latter always lies flush with the upper surface of the blocks B andG. Across the bar, on its up per side are made a number of recesses orcuts L of various "widths and depths to suit the set of the teeth ondifferent blades and conforming with the bevel of the end of the plungerE. To prevent displacement ofthe bar J after its adjustment for aparticular saw blade, a set screw K isprovided in the block C. henproperly adjusted, the perpendicular face of one of the cross cuts Lshould coincide with or be slightly beyond the inner vertical "surfaceof the plunger E.

A strip N of fairly soft material, such as leather, fiber, wood, rubberor brass, is let into the standard D. The purpose of this is to providea soft backing for the saw teeth, in order not to spoil their sharpness.

A lever H is hinged at the upper end of the standard D, in such a mannerthat a downward pressure on the lever will push the plunger E againstthe blade'O, compressing spring F and at the same time bending a toothdownward into the cut L, which at the time registers with the plunger.As soon as the lever is released, the plunger will again be raised bythe spring F.

In some cases particularly when very thick saws are to be set, it mightbe preferable to drive the plunger downward with a hammer. Then weprovide a plunger 6 with a broader top and having a slot 9 to engage pinG, see Figs. 5, 6 and 7 which however in all other respects is similarto the one previously describe In order to facilitate the work and avoidloss of time in shifting the blade and positioning, we provide aposition plug P and a number of sockets Q, therefor on both sides of theplunger E inthe block B; The sock-' ets are at different distancestransversely from the center line of the bar to suit differcut pitch ofteeth. When putting a blade 0 in position, it is laid flat on the blockB, pushed with the points of the teeth against the strip N and with oneside of a tooth resting against the plug P. This insures accuracy in thework.

A clamping arrangement, such as the screw R and a number otholes S forit, might in some cases be found advantageous in order to hold the bladewell down on the block. The holes S are tapped at different distancesfrom the straight edge of the strip so as to accommodate blades ofdifferent width.

To limit the total displacement of the bar J, a shoulder M is providedon its underside for abutting against the block C; and a stop T at theopposite bar end for the inner end to abut against. support for thestandard D.

We claim:

1. A saw setting device having a base and a standard, a horizontallyadjustable diebar guided in said base and a vertically reciprocableplunger in said standard; said plunger being beveled at its lower endcorresponding to the desired set of the saw tooth, and said die-barbeing provided with a plurality of recesses of varying widths and depthbut each inclined to correspond with the bevel on said plunger.

2. A saW setting device having a base and a standard, a horizontallyadjustable die- This stop may also form abar guided in said base, alever pivoted to said standard and a vertically reciprocable plunger insaid standard beneath the lever and engaging therewith; said plungerbeing beveled at its lower end corresponding to the desired set of thesaw tooth, said die-bar being provided with a plurality of recesses of40 varying widths and depths but each inclined to correspond with thebevel on said plunger.

3. A saw setting device having a base and a standard, a horizontallyadjustable diebar guided in said base, a lever pivoted to said standardand a vertically reciprooable plunger in said standard beneath thelever; said plunger being beveled at its lower end corresponding to thedesired set of the saw tooth, and said die-bar being provided with aplurality of recesses of varying widths and depths but each inclined tocorrespond with the bevel on said plunger; and clamping means for saiddie-bar to retain it in its adjusted position.

In testimony whereof we a'fiix our signatures in presence of twowitnesses.

. JOHN E. TURNER.

SHERLEY C. TURNER. lVitnesses to John E. Turner:

H. M. TURNER, BEN. F. MILLER. Witnesses to Sherley C. Turner:

HERMAN JAKOBSSON, EDWIN S. GLARKsoN.

Copies of this patent may be obtained for five cents each. by addressingthe Commissioner of Patents, Washington, D. G.

